Black marlin hunt on the edge of the reef and feed on the abundany schools of both skipjack and yellowfin tuna. Boats catch live tunas each morning on the edge of the reef and transfer live tuna to 'tuna tubes' - a type of live bait tank that keeps the tunas alive until they are deployed and slow trolled along the drop-off. The technique for hooking a live tuna is called 'bridling' - which uses small loop of braided line through the nose of the tuna which allows the hook better penetration on a marlin strike. Similar to 'matching the hatch' in bass fishing circles- slow trolling a live tuna along the reef at 2-3 knots is a very effective presentation to lure in these apex predators.